In the article titled “Effect of Chronic Morphine Consumption on Synaptic Plasticity of Rat’s Hippocampus: A Transmission Electron Microscopy Study” [1], the name and the affiliation of the fifth author were given incorrectly as “Abolfazle Movafag, Department of Genetic Science, Medical Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran.” The revised authors’ list and affiliations are shown above. Additionally, the email address of the corresponding author should be changed to “ashahriari@tums.ac.ir.”